#include <iostream>
#include <fstream>
#include <stdlib.h>
const char *str = "obbo";//4 bytes
int main(int argc, char *argv[])
{
	std::ifstream fi("input.txt");
	int k[100], n = 0;
	while (!fi.eof())
	{
		fi >> k[(n++)%100];
	}
	std::cout << n;
	fi.close();
	std::ofstream fo("output.txt");
	for(int i = 0; i < n; i++)
		fo << str;
	fo.close();
	std::cin >> n;
}